Datasheet

78K0/Kx2-L CHAPTER 14 SERIAL INTERFACE UART6
R01UH0028EJ0400 Rev.4.00 463
Sep 27, 2010
(7) Input switch control register (ISC)
The input switch control register (ISC) is used to receive a status signal transmitted from the master during LIN (Local
Interconnect Network) reception.
The signal input from the R
XD6 pin is selected as the input source of INTP0 and TI000 when ISC0 and ISC1 are set to
1 (refer to Figure 14-3 Port Configuration for LIN Reception Operation).
This register can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets this register to 00H.
Figure 14-11. Format of Input Switch Control Register (ISC)
Address: FF4FH After reset: 00H R/W
Symbol 7 6 5 4 3 2 1 0
ISC 0 0 0 0 0 0 ISC1 ISC0
ISC1 TI000 input source selection
0 TI000
1 RXD6
ISC0 INTP0 input source selection
0 INTP0
1 RXD6
Remark 78K0/KY2-L, 78K0/KA2-L: TI000/INTP0/P00, RxD6/SDAA0/P61
78K0/KB2-L, 78K0/KC2-L: TI000/P00, INTP0/EXLVI/P120, RxD6/P14
(8) Port mode register 1 (PM1), port mode register 6 (PM6)
These registers set port 1 input/output or port 6 input/output in 1-bit units.
PM1 and PM6 can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets this register to FFH.
• 78K0/KY2-L, 78K0/KA2-L
When using the P60/T
XD6/SCLA0 pin for serial interface data output, clear PM60 to 0 and set the output latch of P60
to 1.
When using the P61/R
XD6/SDAA0 pin for serial interface data input, set PM61 to 1. The output latch of P61 at this
time may be 0 or 1.
• 78K0/KB2-L, 78K0/KC2-L
When using the P13/T
XD6 pin for serial interface data output, clear PM13 to 0 and set the output latch of P13 to 1.
When using the P14/R
XD6 pin for serial interface data input, set PM14 to 1. The output latch of P14 at this time may
be 0 or 1.